html,
body {
    width: 100%;
    height: 100%;
    background: #484848;
}

body {
    position: relative;
}

em {
    display: none;
}

#extra,
#view {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 640px;
    height: 480px;
    margin: -280px auto auto -320px;
    text-align: left;
    background: #fff;
}

#view {
    display: block;
    background: transparent url(blank.gif) repeat 0 0;
    cursor: default;
    z-index: 20;
}

#extra {
    background: #000;
}

#extra .layer {
    position: absolute;
    left: 0;
    top: 0;
    width: 640px;
    height: 480px;
    z-index: 10;
}

#fork {
    display: block;
    position: absolute;
    right: 0;
    top: 0;
    width: 356px;
    height: 92px;
    cursor: pointer;
    background-image: url(fork.gif);
    z-index: 0;
}

#desc {
    width: 100%;
    position: absolute;
    left: 0;
    top: 50%;
    height: 80px;
    color: #ccc;
    line-height: 40px;
    margin-top: 200px;
    text-align: center;
    font-size: 14px;
}

#desc a {
    color: #318fe1;
}

#browser {
    font-size: 14px;
    line-height: 16px;
}

#browser .b {
    color: #fff;
    font-weight: 700;
}